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180955

Sigma-Aldrich

Cellulose acetate

average Mn ~30,000 by GPC

Synonyme(s) :

Acetylcellulose

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About This Item

Numéro CAS:
9004-35-7
Numéro MDL:
MFCD00081496
Code UNSPSC :
12162002
Nomenclature NACRES :
NA.23
Le tarif et la disponibilité ne sont pas disponibles actuellement.

Forme

powder

Niveau de qualité

200

Poids mol.

average Mn ~30,000 by GPC

Ampleur du marquage

39.8 wt. % acetyl

Impuretés

≤3.0% water

Indice de réfraction

n20/D 1.475 (lit.)

Densité

1.3 g/mL at 25 °C (lit.)

Chaîne SMILES 

O1[C@H](C(C(C(C1COC(=O)C)OC(=O)C)OC(=O)C)OC(=O)C)O[C@@H]2C(OC(C(C2OC(=O)C)OC(=O)C)OC(=O)C)COC(=O)C

InChI

1S/C28H38O19/c1-11(29)37-9-19-21(39-13(3)31)23(40-14(4)32)26(43-17(7)35)28(46-19)47-22-20(10-38-12(2)30)45-27(44-18(8)36)25(42-16(6)34)24(22)41-15(5)33/h19-28H,9-10H2,1-8H3/t19?,20?,21?,22-,23?,24?,25?,26?,27?,28+/m1/s1

Clé InChI

WOTQVEKSRLZRSX-OLIDUAMRSA-N

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Catégories apparentées

Description générale

Cellulose is a naturally occurring biodegradable and biocompatible polymer. Cellulose based polymers find wide variety of applications as base matrix in biopharmaceutical industry. Cellulose acetate is soluble in acetone. Cellulose acetate can be easily electrospun into its nanofibers.[1]

Application

Cellulose acetate was used in the fabrication of gold microelectrode for electrochemical monochloramine measurement.[2] Cellulose acetate based membranes are used in the separations in aqueous systems and in reverse osmosis process.[3] It has been reported to be used to desalinate seawater.[4]Cellulose acetate was used for biosensor encapsulation.[5] It was used in the preparation of cellulose acetate nanofibre felt structure,[6] cellulose acetate fibers.[7]

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

nwg

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

Eyeshields, Gloves, type N95 (US)

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Certificats d'analyse (COA)

Lot/Batch Number
MKCV7462
MKCW4892
MKCV5391
MKCW8981
MKCW1891

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Retrouvez la documentation relative aux produits que vous avez récemment achetés dans la Bibliothèque de documents.

Consulter la Bibliothèque de documents

Cellulose acetate reverse osmosis membranes: optimization of preparation parameters
Duarte AP, et al.
Journal of Applied Polymer Science, 103(1), 134-139 (2007)
Monochloramine-sensitive amperometric microelectrode: optimization of gold, platinum, and carbon fiber sensing materials for removal of dissolved oxygen interference
Lee WH, et al.
Ionics, 1-12 (2015)
Printed and flexible biosensor for antioxidants using interdigitated ink-jetted electrodes and gravure-deposited active layer
Pavinatto FJ, et al.
Biosensors And Bioelectronics (2014)
Fabrication and bioseparation studies of adsorptive membranes/felts made from electrospun cellulose acetate nanofibers
Zhang L, et al.
Journal of Membrane Science , 319(1), 176-184 (2008)
Cellulose acetate reverse osmosis membranes: optimization of the composition
Duarte AP, et al.
Journal of Applied Polymer Science, 100(5), 4052-4058 (2006)
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Questions

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  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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